Interstate commerce

The text of the Interstate commerce clause of the United States Constitution, Article I, Section 8, Clause 3 reads:

[The Congress shall have Power] To regulate Commerce with foreign Nations, and among the several States, and with the Indian tribes

Quotes

In regards to interstate commerce:

• The railroad monopolies had the power to set prices, exclude competitors, and control the market in several geographic areas. Although there was competition among railroads for long-haul routes, there was none for short-haul runs. Railroads discriminated in the prices they charged to passengers and shippers in different localities by providing rebates to large shippers or buyers. These practices were especially harmful to American farmers, who lacked the shipment volume necessary to obtain more favorable rates.